Question
Answer
$$5i+i-9-8i=-2i-9$$
Explanation
| $$ \begin{aligned}5i+i-9-8i& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}-2i-9\end{aligned} $$ | |
| ① | Combine like terms: $$ \color{blue}{5i} + \color{red}{i} -9 \color{red}{-8i} = \color{red}{-2i} -9 $$ |
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